CN214025338U

CN214025338U - Machining clamp suitable for workpieces with different heights

Info

Publication number: CN214025338U
Application number: CN202022766031.1U
Authority: CN
Inventors: 唐建华
Original assignee: Chongqing Chuanpu Machinery Co ltd
Current assignee: Chongqing Chuanpu Machinery Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-24
Anticipated expiration: 2030-11-25

Abstract

The utility model provides a processing clamp suitable for workpieces with different heights, which comprises a processing table, wherein the processing table is provided with a first processing area and a second processing area, the first processing area is used for processing the front and back of a left box body, and the second processing area is used for processing the front and back of a right box body; the processing area is provided with at least four pressing components, the pressing components are used for pressing the workpiece to the top of the processing table, the processing area is also provided with a plurality of positioning columns and cushion blocks, the positioning columns are inserted into positioning holes corresponding to the positioning columns on the workpiece, the cushion blocks are detachably arranged at the top of the processing table through clamping components, and the pressing components press the workpiece to the cushion blocks; each cushion block is also provided with a vent pipe communicated with the air tightness detection device, the side wall of the cushion block, which is tightly attached to the workpiece, is provided with vent holes communicated with the vent pipes, and the air tightness detection device is used for ventilating air to the vent pipes. The utility model provides a current anchor clamps do not set up the problem that detects the device that the work piece was whether compressed tightly and not be suitable for not co-altitude work piece.

Description

Machining clamp suitable for workpieces with different heights

Technical Field

The utility model relates to a add clamping apparatus technical field, especially relate to a be suitable for add clamping apparatus of co-altitude work piece.

Background

The crankcase body is usually an aluminum alloy die casting and comprises a left box body and a right box body, and is used for engines of two-wheeled motorcycles and three-wheeled motorcycles. The existing crankshaft box body milling clamping method comprises the following steps: the clamp plate is fixed on the surface of a milling machine table by adopting the clamp plate, the clamp plate can only be arranged at the edge or the corner because the milling surface can not be provided with the clamp plate, the clamp plate clamping refers to the clamping of the clamp plate, namely, a steel plate which is connected with the surface of the milling machine table by a bolt is adopted in the middle, one end of the steel plate is provided with a sizing block, the other end of the steel plate is pressed at the edge of a part to be clamped, and the part is fixed by screwing the bolt.

The disadvantages of this clamping method are: on one hand, a special air tightness detection device is not used for detecting whether the pressing plate presses the workpiece tightly, so that the workpiece can be displaced in the machining process, the workpiece is machined and dislocated, and the product can be scrapped when the workpiece is serious; on the other hand, the clamping mode has low efficiency and is not suitable for workpieces with different heights.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a be suitable for not machining anchor clamps of co-altitude work piece, it has solved that does not set up detection device and detects whether the work piece is compressed tightly among the prior art, and the problem of the work piece of co-altitude is not suitable for to current anchor clamps.

According to the embodiment of the utility model, a be suitable for not machining anchor clamps of co-altitude work piece, including the processing platform, be provided with a first processing district and a second processing district on the processing platform at least, the first processing district is used for processing the positive and negative of left box, the second processing district is used for processing the positive and negative of right box; each of the first machining area and the second machining area is provided with at least four pressing components, each pressing component is used for pressing a workpiece on the top of the machining table, each first machining area and each second machining area are also provided with a plurality of positioning columns and cushion blocks, the positioning columns correspond to positioning holes in the workpiece and are inserted into the positioning holes to limit the movement of the workpiece on a horizontal plane, the cushion blocks are detachably arranged on the top of the machining table through clamping components, and the pressing components press the workpiece on the cushion blocks; each cushion block is further provided with a vent pipe communicated with the air tightness detection device, the side wall, attached to the workpiece, of each cushion block is further provided with vent holes communicated with the vent pipes, and the air tightness detection device is used for introducing air into the vent pipes.

Further, the chucking subassembly includes the bayonet lock, the top of processing platform is provided with and is used for the confession the first recess of cushion male, the lateral wall of first recess is sunken to form the second recess, the bayonet lock sets up with sliding in the second recess, still be provided with first spring in the second recess, the one end of first spring is connected with the lateral wall of second recess, the other end and the bayonet lock of first spring are connected, the bayonet lock is located first recess and is provided with the inclined plane near the one side at processing platform top, be provided with the jack on the lateral wall of cushion, the bayonet lock inserts under the elasticity of first spring the jack.

Furthermore, a push rod is further arranged at the top of the clamping pin, a sliding groove communicated with the second groove is formed in the top of the processing table, and one end of the push rod penetrates out of the sliding groove and slides in the sliding groove.

Further, the lateral wall that the spout deviates from first recess caves in and forms the third recess, be provided with the second spring in the third recess and be provided with the baffle with sliding, the one end of baffle with the lateral wall of push rod is connected, the other end of baffle with second spring coupling, works as when the bayonet lock inserts the jack, the baffle is used for sheltering from the spout.

Furthermore, the compressing assembly comprises a first compressing piece and a second compressing piece, the first compressing piece is a first air cylinder, the top of a piston rod of the first air cylinder is provided with at least one pressing block through a connecting piece, each pressing block is used for compressing the workpiece on the cushion block from the edge of the workpiece, the second compressing piece is a second air cylinder, the top of a piston rod of the second air cylinder is provided with a fastening head, and the fastening head penetrates through a corresponding through hole in the workpiece and compresses the workpiece on the cushion block from the top of the workpiece.

Furthermore, the positioning columns comprise first positioning columns and second positioning columns, the first positioning columns penetrate through the positioning holes, corresponding to the first positioning columns, in the workpiece, the second positioning columns are arranged on the machining table through cushion blocks, and the second positioning columns are inserted into the corresponding positioning holes in the workpiece.

Compared with the prior art, the utility model discloses following beneficial effect has: the air vent communicated with the air tightness detection device is arranged on the cushion block, the air vent communicated with the air vent is arranged on the side wall, close to the workpiece, of the cushion block, when the workpiece is completely pressed on the top of the machining table by the pressing component, the workpiece seals the air vent on the cushion block, the air tightness detection device introduces air into the air vent, and as the air vent is communicated with the air vent, if the pressing component completely presses the workpiece, gas cannot leak from the air vent, otherwise, the gas can leak from the air vent, and the air tightness detection device feeds back information of whether the workpiece is pressed or not by detecting the pressure change of the air vent, so that the technical problem that the existing clamp does not have a special air tightness detection device to check whether the workpiece is pressed or not is solved, and the possibility of displacement of the workpiece in the machining process is reduced; the cushion blocks are inserted into the top of the processing table through the clamping assembly, so that the cushion blocks with different heights can be quickly replaced according to the models of workpieces, and the problem that the existing clamp is not suitable for the workpieces with different heights is solved.

Drawings

Fig. 1 is a schematic structural diagram of a workbench according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a clamping assembly according to an embodiment of the present invention.

In the above drawings: 1. a processing table; 100. a first processing zone; 101. a second processing zone; 2. a first pressing member; 21. a first cylinder; 22. briquetting; 3. a second pressing member; 31. a second cylinder; 32. a fastening head; 4. a positioning column; 41. a first positioning post; 42. a second positioning column; 5. cushion blocks; 6. a first groove; 7. a bayonet lock; 8. a second groove; 9. a first spring; 10. a push rod; 11. a third groove; 12. a baffle plate; 13. a second spring.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1, an embodiment of the present invention provides a processing fixture suitable for workpieces with different heights, including a processing table 1, wherein the processing table 1 is at least provided with a first processing area 100 and a second processing area 101, the first processing area 100 is used for processing the front and back of a left box body, and the second processing area 101 is used for processing the front and back of a right box body; each of the first machining area 100 and the second machining area 101 is provided with at least four pressing assemblies, each pressing assembly is used for pressing a workpiece on the top of the machining table 1, each first machining area 100 and each second machining area 101 are further provided with a plurality of positioning columns 4 and cushion blocks 5, the positioning columns 4 correspond to positioning holes in the workpiece and are inserted into the positioning holes to limit the movement of the workpiece on a horizontal plane, the cushion blocks 5 are detachably arranged on the top of the machining table 1 through clamping assemblies, and the pressing assemblies press the workpiece on the cushion blocks 5; each cushion 5 is further provided with a vent pipe communicated with the air tightness detection device, the side wall of the cushion 5, which is tightly attached to the workpiece, is further provided with a vent hole communicated with the vent pipe, and the air tightness detection device is used for introducing air into the vent pipe.

Specifically, the processing table 1 is cylindrical and is divided into four processing areas, wherein two processing areas are used for processing the front and back surfaces of the left box body, and two processing areas are used for processing the front and back surfaces of the right box body, firstly, the cushion block 5 adapted to the type of the workpiece is replaced according to the type of the workpiece, then the workpiece is placed on the cushion block 5, the positioning column 4 on the processing table 1 is inserted into the positioning hole corresponding to the workpiece on the workpiece, so that the workpiece is limited to move on the horizontal plane, then, the pressing component is controlled to press the workpiece on the cushion block 5, the workpiece is limited to move in the vertical direction, the air tightness detection device arranged outside the processing table 1 is started, air is introduced into the vent pipe, if the pressing component presses the workpiece on the cushion block 5, the air introduced into the vent pipe cannot leak from the vent hole, and the air tightness detection device detects that the pressure intensity in the vent pipe is increased, so that the workpiece can be processed, and otherwise, the air tightness detection device detects that the pressure in the vent pipe is reduced, and at the moment, the pressing assembly is adjusted to continuously apply pressure to the workpiece until the air tightness detection device detects that the pressure in the vent pipe is increased.

As shown in fig. 2, the clamping assembly includes a clamping pin 7, a first groove 6 for inserting the cushion block 5 is arranged at the top of the processing table 1, a second groove 8 is formed by the side wall of the first groove 6 in a concave manner, the clamping pin 7 is slidably arranged in the second groove 8, a first spring 9 is further arranged in the second groove 8, one end of the first spring 9 is connected with the side wall of the second groove 8, the other end of the first spring 9 is connected with the clamping pin 7, an inclined surface is arranged on the side, close to the top of the processing table 1, of the clamping pin 7, a jack is arranged on the side wall of the cushion block 5, and the clamping pin 7 is inserted into the jack under the elastic force of the first spring 9. Specifically, when cushion 5 inserts first recess 6, at first with the inclined plane contact of bayonet lock 7, bayonet lock 7 is under the thrust that cushion 5 was applyed, to second recess 8 internal motion and compress first spring 9, when bayonet lock 7 aligns with the jack on cushion 5, under the spring action of first spring 9, bayonet lock 7 inserts in the jack, thereby restriction cushion 5 moves on vertical direction, because first recess 6 suits with cushion 5, consequently, when cushion 5 inserts first recess 6, can not move in first recess 6, use this mode fixed cushion 5, can realize quick dismantlement installation different models's cushion 5.

The top of the bayonet 7 is also provided with a push rod 10, the top of the processing table 1 is provided with a sliding groove communicated with the second groove 8, and one end of the push rod 10 penetrates through the sliding groove and slides in the sliding groove. When the cushion block 5 needs to be taken out, the push rod 10 is pushed towards the direction far away from the cushion block 5, the bayonet pins 7 are separated from the jacks, and then the cushion block 5 is pulled upwards, so that the cushion block 5 can be taken out from the first groove 6.

The lateral wall that the spout deviates from first recess 6 is sunken to form third recess 11, be provided with second spring 13 in the third recess 11 and be provided with baffle 12 with sliding, the one end of baffle 12 with the lateral wall of push rod 10 is connected, the other end of baffle 12 with second spring 13 is connected, works as bayonet lock 7 inserts during the jack, baffle 12 is used for sheltering from the spout, when promoting push rod 10 to the direction of keeping away from cushion 5, baffle 12 is to third recess 11 internal motion, and baffle 12 sets up and can avoid when processing the work piece, and the useless thing that cuts that produces gets into second recess 8.

As shown in fig. 1, the pressing assembly includes a first pressing member 2 and a second pressing member 3, the first pressing member 2 is a first air cylinder 21, the top of a piston rod of the first air cylinder 21 is provided with at least one pressing block 22 through a bolt or a screw, each pressing block 22 is used for pressing a workpiece on a cushion block 5 from an edge of the workpiece, the second pressing member 3 is a second air cylinder 31, the top of a piston rod of the second air cylinder 31 is provided with a fastening head 32, and the fastening head 32 penetrates through a corresponding through hole in the workpiece and presses the workpiece on the cushion block 5 from the top of the workpiece. Specifically, the second cylinder 31 and the fastening head 32 arranged on the piston rod of the second cylinder penetrate through a through hole in a workpiece, then the workpiece is horizontally moved, a positioning hole in the workpiece is aligned with the positioning column 4, at the moment, the fastening head 32 is not aligned with the through hole, then the second cylinder 31 is started, the piston rod of the second cylinder 31 contracts, the piston rod drives the fastening head 32 to move downwards, the workpiece is pressed from the top of the workpiece, and therefore the purpose that the workpiece is pressed on the cushion block 5 is achieved.

Specifically, the positioning post 4 includes a first positioning post 41 and a second positioning post 42, the first positioning post 41 penetrates through a corresponding positioning hole on the workpiece, the second positioning post 42 is disposed on the processing table 1 through a cushion block 5, and the second positioning post 42 is inserted into the corresponding positioning hole on the workpiece. Because the shape of the workpiece is complex, a plurality of blind holes and through holes are arranged on the workpiece, and in order to ensure that the positioning of the workpiece is more accurate, positioning columns 4 for inserting the blind holes and the through holes are respectively arranged in the processing areas.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a be suitable for not machining anchor clamps of co-altitude work piece which characterized in that: the processing device comprises a processing table (1), wherein at least one first processing area (100) and one second processing area (101) are arranged on the processing table (1), the first processing area (100) is used for processing the front and back of a left box body, and the second processing area (101) is used for processing the front and back of a right box body; each first machining area (100) and each second machining area (101) are provided with at least four pressing components, each pressing component is used for pressing a workpiece to the top of the machining table (1), each first machining area (100) and each second machining area (101) are further provided with a plurality of positioning columns (4) and cushion blocks (5), the positioning columns (4) correspond to positioning holes in the workpiece and are inserted into the positioning holes to limit the movement of the workpiece on a horizontal plane, the cushion blocks (5) are detachably arranged on the top of the machining table (1) through clamping components, and the pressing components press the workpiece to the cushion blocks (5); each cushion block (5) is further provided with a vent pipe communicated with the air tightness detection device, the side wall, attached to the workpiece, of each cushion block (5) is further provided with vent holes communicated with the vent pipes, and the air tightness detection device is used for introducing air into the vent pipes.

2. The machining clamp suitable for the workpieces with different heights as claimed in claim 1, wherein: the clamping assembly comprises a clamping pin (7), the top of the machining table (1) is provided with a first groove (6) for supplying the cushion block (5) to insert, the side wall of the first groove (6) is sunken to form a second groove (8), the clamping pin (7) is slidably arranged in the second groove (8), a first spring (9) is further arranged in the second groove (8), one end of the first spring (9) is connected with the side wall of the second groove (8), the other end of the first spring (9) is connected with the clamping pin (7), one surface, located on the first groove (6), of the clamping pin (7) close to the top of the machining table (1) is provided with an inclined surface, the side wall of the cushion block (5) is provided with an insertion hole, and the clamping pin (7) is inserted into the insertion hole under the elastic force of the first spring (9).

3. The machining clamp suitable for the workpieces with different heights as claimed in claim 2, wherein: the top of the clamping pin (7) is further provided with a push rod (10), the top of the processing table (1) is provided with a sliding groove communicated with the second groove (8), and one end of the push rod (10) penetrates out of the sliding groove and slides in the sliding groove.

4. A machining fixture suitable for workpieces with different heights as claimed in claim 3, wherein: the lateral wall that the spout deviates from first recess (6) is sunken to form third recess (11), be provided with second spring (13) in third recess (11) and be provided with baffle (12) with sliding, the one end of baffle (12) with the lateral wall of push rod (10) is connected, the other end of baffle (12) with second spring (13) are connected, work as bayonet lock (7) insert during the jack, baffle (12) are used for sheltering from the spout.

5. The machining clamp suitable for the workpieces with different heights as claimed in claim 4, wherein: the pressing assembly comprises a first pressing piece (2) and a second pressing piece (3), the first pressing piece (2) is a first air cylinder (21), the top of a piston rod of the first air cylinder (21) is provided with at least one pressing block (22) through a connecting piece, each pressing block (22) is used for pressing the pressing block (5) from the edge of a workpiece, the second pressing piece (3) is a second air cylinder (31), the top of the piston rod of the second air cylinder (31) is provided with a fastening head (32), the fastening head (32) penetrates through a corresponding through hole in the workpiece, and the fastening head is pressed on the cushion block (5) from the top of the workpiece.

6. The machining fixture applicable to workpieces with different heights as claimed in claim 4 or 5, wherein: the positioning column (4) comprises a first positioning column (41) and a second positioning column (42), the first positioning column (41) penetrates through a corresponding positioning hole in the workpiece, the second positioning column (42) is arranged on the machining table (1) through a cushion block (5), and the second positioning column (42) is inserted into the corresponding positioning hole in the workpiece.